Hesai Group (abbrev. “Hesai”) has issued notice that its 2026 annual general meeting (AGM) will take place on 26 June 2026 at 1:30 p.m. (Beijing time) in Suzhou Industrial Park, Jiangsu Province.

Key agenda items:

1. Financial Statements • Shareholders will vote on adoption of the audited consolidated financial statements for the year ended 31 December 2025 together with the directors’ and auditors’ reports.

2. Board Composition and Remuneration • Re-election of Executive Director Dr. Yifan Li. • Re-election of Independent Non-Executive Directors Mr. Jia Ren and Dr. Hui Wang. • Authorisation for the board to fix directors’ remuneration.

3. Auditor Re-appointment • Renewal of Deloitte Touche Tohmatsu Certified Public Accountants LLP and Deloitte Touche Tohmatsu as the Company’s PRC and international auditors, respectively, with board-determined fees.

4. General Issuance Mandate • Directors may allot, issue or deal with Class B ordinary shares—up to 10 % of total issued shares (excluding treasury shares) as at the date of the resolution—during the defined “Relevant Period.”

5. Share Repurchase Mandate • Authorises on-market repurchases of up to 10 % of issued shares (excluding treasury shares) and ADS-underlying shares during the same Relevant Period.

6. Extension Mandate • Conditional on the above mandates, the issuance limit may be increased by the number of shares actually repurchased, up to an additional 10 % of issued share capital.

7. 1-for-8 Share Subdivision • Each issued and unissued ordinary share of US$0.0001 par value will be subdivided into eight shares of US$0.0000125 par value. • Post-subdivision authorised share capital remains US$100,000 but is re-denominated into 8.00 billion shares (400 million Class A and 7.60 billion Class B). • Subdivided shares carry the same rights and restrictions as existing shares, subject to voting and conversion terms for Class A shares.

Procedural details:

• Quorum: one or more members holding at least 10 % of voting rights, present in person or by proxy. • Proxy deadline: 24 June 2026, 1:30 p.m. Hong Kong time. • ADS voting instructions must reach Deutsche Bank Trust Company Americas by 16 June 2026, 10:00 a.m. New York time.

Board composition at notice date: Executive Directors Dr. Yifan Li (Chairman & CEO), Dr. Kai Sun, Mr. Shaoqing Xiang, Ms. Cailian Yang; Independent Non-Executive Directors Ms. Yi Zhang, Mr. Jia Ren, Dr. Hui Wang.